发明申请
- 专利标题： HYBRID WHITE ORGANIC LIGHT EMITTTNG DEVICE AND METHOD OF MANUFACTURING THE SAME
- 专利标题（中）： 混合白色有机发光装置及其制造方法
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申请号： US12664040申请日： 2008-08-21
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公开(公告)号： US20100187552A1公开(公告)日： 2010-07-29
- 发明人: Jeong Ik Lee , Hye Yong Chu , Sung Mook Chung , Lee Mi Do , Sang Hee Park , Chi Sun Hwang
- 申请人： Jeong Ik Lee , Hye Yong Chu , Sung Mook Chung , Lee Mi Do , Sang Hee Park , Chi Sun Hwang
- 申请人地址： KR Daejeon
- 专利权人： Electronic and Telecommunications Research Institute
- 当前专利权人： Electronic and Telecommunications Research Institute
- 当前专利权人地址： KR Daejeon
- 优先权： KR10-2007-0085424 20070824; KR10-2008-0066177 20080708
- 国际申请： PCT/KR2008/004869 WO 20080821
- 主分类号： H01L51/52
- IPC分类号： H01L51/52 ; H01L51/56
摘要：
Provided are a hybrid white organic light emitting diode (OLED) and a method of fabricating the same. A HOMO level difference between a fluorescent emission layer and an electron transport layer in an organic emission layer (OLED) becomes higher than that between the other layers or a LUMO level difference between a fluorescent emission layer and a hole transport layer is higher than that between the other layers, so that a recombination region is restricted to a part of an emission layer to obtain high-efficiency fluorescent light emission. In addition, triplet excitons that are not used in a fluorescent emission layer are transferred to an auxiliary emission layer formed to be spaced apart from a recombination region by a predetermined distance to emit light in a different color from the fluorescent emission layer, so that both singlet and triplet excitons formed in the OLED are used to obtain high-efficiency white light emission.
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